Very good suggestions. I have a configuration plist with many colors, many of which are defined as convenient categories on UIColor, such as [UIColor goldColor], or [UIColor colorWithHex:@"#00AA00"] etc., so this is not quite working yet...
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MundiNov 1 '12 at 8:56

If I had the colors in an external configuration file, I guess I would opt to store the hex values and parse them, because a direct translation of configuration values to selector names sounds like trouble. If you don’t mind that, I think you can take the NSSelectorFromString way I suggested in the answer.
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zoulNov 1 '12 at 9:27

Thought about doing it exactly in this way (hex values). Thanks for your input.
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MundiNov 1 '12 at 9:28